﻿// Jinx AJAX Framework
// Copyright (C) 2008 Blake Hegerle
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using Core;

namespace Core.Parsing.ContextFree.LR
{
    public class Action : Tuple<ActionType, int>
    {
        public Action(ActionType ActionType, int Context)
            : base(ActionType, Context)
        { }

        public Action(ActionType ActionType)
            : base(ActionType, default(int))
        { }

        public ActionType ActionType { get { return Item1; } }
        public int Context { get { return Item2; } }

        public override string ToString()
        {
            switch (ActionType)
            {
                case ActionType.Accept:
                    return "a";
                case ActionType.Reduce:
                    return "r" + Context;
                case ActionType.Shift:
                    return "s" + Context;
                default:
                    return "";
            }
        }
    }
}
